Home / 190,591.45-263,021.88-105,706.69

Finding the Fourth Proportional to 190,591.45, 263,021.88 and 105,706.69

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Solution

The fourth proportional to 190,591.45, 263,021.88 and 105,706.69 is: 145,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,591.45 : 263,021.88 = 105,706.69 : x
  2. Step 2: Convert to fraction form
    190,591.45/263,021.88 = 105,706.69/x
  3. Step 3: Cross multiply
    190,591.45x = 263,021.88 × 105,706.69
  4. Step 4: Simplify right side
    190,591.45x = 27,803,172,071.22
  5. Step 5: Solve for x
    x = 27,803,172,071.22/190,591.45
  6. Step 6: Final answer
    x = 145,878.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.